Needle-setting device.



A. CARP.

NEEDLE SETTING DEVICE.

APPLICATION FILED JULY 25, 1912.

Patented Sept. 2, 1913.

M (4/0 can. Him/mugs W. K BEJ 1 ime f m E. B a A e I A 1 my X Q Q ITEDSTATES PATENT OFFMJE.

ARTHUR CARP, OF ST. LOUIS, MISSOURI, ASSIGNOR TO THE REECE BUTTON HOLEMACHINE COMPANY, 015 BOSTON, MASSACHUSETTS, A CORPORATION OF MAINE.

NEEDLE-SETTING DEVICE.

Specification of Letters Patent.

Patented Sept. 2, 1913.

To all whom it may concern Be it known that I, ARTHUR CARP, a subject ofthe Czar of Russia, residing at St. Louis, in the State of Missouri,have invented certain new and useful Improvements in Needle-SettingDevices, of which the following is a specification, reference being hadtherein to the accompanying drawmg.

My invention relates to needle setting devices for sewing machines, andis adaptable to sewing machines of any class or description.

The principal object hereof is to provide for the ready setting of theneedle in proper position by the means hereinafter referred to, whichmay be originally adjusted or standardized, whereby in the subsequentinsertion of needles they will invariably be brought to thepredetermined position. This object is accomplished herein by providingat the operating end of the needle bar or carrier a part which isadjustable along the needle carrying bar and has means for holding itthereto in its adjusted or standardized position, together with a meansindependent thereof for detachably securing a needle in a given positionwith relation to said part.

I will first describe two forms of the device embodying the presentinvention, and

will thereafter point out the novel features in the claims.

In the accompanying drawings forming a part hereof, Figure 1 is a sideelevation of one form of embodiment of the present invention, showing aportion of a needle bar of a convenient type with the improvement hereoflocated at the foot of said bar. Fig. 2 is a front elevation of thedevices shown in Fig. 1. Fig. 3 is a central vertical crosssection ofthe devices shown in Figs. 1 and 2. Fig. t is a horizontal cross-sectiontaken upon the broken line indicated in Fig. 3. Fig. 5 shows inperspective the particular parts involved in this embodiment of myinvention detached from the needle bar or carrier. Fig. 6 shows in sideelevation a portion of a sewing mechanism wherein a curved needle isemployed and a needle carrier movable in an arc, with the presentinvention applied thereto. Fig. 7 is a transverse section taken upon thebroken line indicated in Fig. 6. Fig, 8 shows detached and inperspective the needle stop of Figs. 6 and 7.

Similar letters of reference designate corresponding parts in theseveral figures of the drawings.

A is a convenient form of needle bar, at the lower portion B of which isthe needle C of any convenient type.

According to this invention a special part is provided which isadjustable along the needle bar and has means for holding it in adjustedposition. This adjustable part D, while it may take various physicalforms, is shown as an internal part or plug. Referring to its furtherdetails, the part D is shown cylindrical in form and arranged lengthwisewithin the needle bar or the part B of said bar, so as to belongitudinally movable, and the needle bar is internally bored toreceive the part D and permit its movement. The part D being adjustablealong the needle bar, means for holding it in adjusted position areprovided in the form of a holding screw E passing from the exterior ofthe bar into engagement with the plug. The threaded stem of the holdingscrew is shown engaged in threads formed in the wall of B so that thescrew has a fixed position, while the plug D as shown is of sufficientlength to permit considerable adjustment, the screw E clamping it inplace in any adjustment.

Vithin the interior longitudinal bore of the needle bar is fitted theneedle C substan tially in alinement with the plug D. Vhen the needle isset into position by being forced up through its bore to the positionindicated in Fig. 3, it will contact with the plug D and thereupon thesecuring screw G will be tightened for securing the needle in a givenrelation to the plug, that is to say in abutment or contact with it. Itis obvious that with such an arrangement the constructor or mechanic hasmerely to apply a standard needle to the device while the screw E isloosened and plug D is loose, then carefully adjust the needle in exactand proper relation to cooperate with the remainder of the sewingmechanism, then tighten the screw G to secure the needle in place, thencause or allow the plug D to do scend into intimate contact with thebutt end of the needle, and finally securely and permanently tighten theholding screw E,

cessible, so that in adjusting the plug there will be no difiicult-y inforcing it down upon the top of the needle;

The lower part B- of the needle carrier.

inlay be detachable in a well-known manner from and attachable to themam JOPtlOIl of the bar or carrier A.

I will now refer to the embodiment of my inventionillustrated in Figs.6, 7 and 8. A curved needleand a carrier movable in an are areillustrated in the under sewing mechanism of the button hole stitchingmachine of the N. lV. Dixon Patent No. 695,089, to which reference maybe made for description and details of structure not herein illustrated.In these figures the needle bar or carrier H, to which the. needle I issecured, may be fitted in any desired manner for movement in an arc, butfor convenience is shown as constituting an are shaped slide movablewithin a curved groove, race or guide-way J. The lower side of the racemay be under-cut as indicated by the dotted line K, and the lower sideof the carrier H may be inclined to correspond to the under-cut asindicated by the dotted line L. As usual a throat M may be employed,through which the needle I passes as it reciprocates upwardly anddownwardly.

As a convenient means to lock or hold the needle in place, a pair ofattaching screws N, N are shown, these engaging partial threads formedin the opposite sides of the carrier H, the carrier having a curved.needle groove longitudinally arranged as shown.

The needle stop 0 hereof is shown secured to the carrier by an attachingmeans, namely the screw P, which has a fixed position with relation tothe carrier. This screw may for convenience project from the rear asshown, through the carrier to where at the front it is provided with aremovable nut 79.

As before stated, the needle stop 0 is held in place by the screw P, butit is arranged to be shiftable' relatively thereto when the nut 79 isloose. To this end the fiat portion of the needle stop 0 is formed 'withan elongated slot at 0 designed to be passed over the screw P, theextended length of the slot enabling relative shifting movement of theneedle stop to a sufiicient extent.

Projecting inwardly as a part of the nee dle stop 0 is the finger Qconstructed and arranged. to extend directly into the needle groove ofthe carrier H so as to constitute an effective stop for the butt end ofthe needle. Unlike the modification of Figs. 1 to 5 where the needlestop passes longitudinally into the path of the needle, theneedlestopping finger Q of Figs, 6 to 8 is seen to extend laterally intothe needle groove or path. Extending forwardly and preferably integralwith the needle stop 0 is an extension R which forms a convenient meansfor shifting the needle stop when the screw P is loosened, and thisextension may also be provided with a perforation at r serving as athread guide for the thread which is to pass to needle I. I 1

It will be noticed that in both of the embodiments of the invention, theneedle-stop has a fixed-position attaching means or screw, the needlestop being shiftable relatively thereto and held thereby when in properposition. a

It is obvious that many of the illustrated features herein may be variedwithin the scope of the present invention, and I therefore do not wishto be limited to any features or details except as set forth in theappended claims.

No claim is herein made broadly to the shown combination, with theneedle carrier or bar, of a needle stop adjustable longitu- 'dinally ofthe needle and carrier, an exteriorly accessible locking deviceoperative 100 after adjustment of such stop for locking the stop inadjustedposition, and a needle securing device for detachably securing aneedle in the position determined by said stops adjustment. Nor to suchcombination when further restricted to the features that the needle stopis freely slidable longitudinally relatively to the needle carrier whilein engagement therewith, and that the stop determines the needlesposition through. contact by the needle butt. j

l/Vhat I claim and desire to secure by Letters Patent is: j l

1. A sewing machine needle setting device comprising in combination withthe needle carrier, a needle stop adjustable longitudinally of theneedle and carrier, a fixedposition stop-securing device operative afteradjustment of such stop for locking the stop in adjusted position, and aneedle-securing device for detachably securing a needle in abuttingcontact with said stop,

2. A sewing machine needle setting device comprising in combination withthe needle carrier, a needle stop adjustable longitudinally of theneedle and carrier, a fixed-position screw-threaded stop-securing devicearranged on the needle carrier and operative after adjustment of suchstop forlocking the stop in adjusted position, and a needle- 13%securing device for detachably securing a needle in abutting contactwith said stop.

3. A sewing machine needle setting device comprising in combination acarrier for a curved needle, movable in an arc and having a curvedneedle recess or groove, means for securing a needle in said recess, anadjustable part adapted to form a stop for said needle, and means tosecure said stop, said stop consisting of a plate arrangedlongitudinally of the carrier and having an offset standing in theneedles path.

4. A sewing machine needle setting device comprising in combination acarrier for a curved needle, movable in an arc and having a curvedneedle recess or groove, means for securing a needle in said recess, anadjustable part adapted to form a stop for said needle, and means tosecure said stop, said stop consisting of a slotted plate arrangedlongitudinally of the carrier and having an offset standing in theneedles path, and said stop securing means comprising a fixed-positionscrew'threaded device engaged in the slot of said plate.

5. A sewing machine needle setting device comprising in combination acarrier for a curved needle, movable in an arc and having a curvedneedle recess or groove, means for securing a needle in said recess, anad justable stop projecting laterally into said recess, and means tosecure said stop.

6. A sewing machine needle setting device comprising in combination acarrier for a curved needle, movable in an arc and hav ing a curvedneedle recess or groove, means for securing aneedle in said recess, alongitudinally slotted stop located in said recess, and a securingmemberpassing through said slot for securing said stop.

7. A sewing machine needle setting device con'iprising in combination acarrier for a curved needle, movable in an arc and having a curvedneedle recess or groove, means for securing a needle in said recess, alongitudinally slotted stop located in said recess, and a securingmember passing through said slot for securing said stop, said stophaving an outward extension by which it may be shifted.

8. A sewing machine needle setting device comprising in combination acarrier for a curved needle, movable in an arc and having a curvedneedle recess or groove, means for securing a needle in said recess, anda part constituting a combined thread guide and needle stop, constructedto extend partly into said recess.

9. A sewing machine needle setting device comprising in combination acarrier for a curved needle, movable in an arc and having a curvedneedle recess or groove, means for securing a needle in said recess, anda part constituting a combined thread guide and needle stop, constructedto extend partly into said recess, and means for adjustably securingsaid part to said carrier.

10. A sewing machine needle setting device comprising in combinationwith the needle carrier, a needle stop having a longitudinal slot andadjustable by reason of said slot longitudinally of the needle andcarrier, an exteriorly accessible locking device operative afteradjustment of such stop for locking the stop in adjusted position, and aneedle securing device for detachably securing a needle in the positiondetermined by said stops adjustment.

11. A sewing machine needle setting device comprising in combinationwith the needle carrier, a needle stop having a longitudinal slot andadjustable by reason of said slot longitudinally of the needle andcarrier, an exteriorly accessible screw-tln'eaded locking device engagedin said slot, operative after adjustment of such stop for locking thestop in adjusted position, and a needle securing device for detachablysecuring a needle in the position determined by said stops adjustment.

12. A sewing machine needle setting device comprising in combinationwith the needle carrier, a needle stop adjustable longitudinally of theneedle and carrier, and located exteriorly to the carrier, a lockingdevice operative after the stops adjustment for locking the stop to theexterior of the carrier in adjusted position, and a needle securingdevice for detachably securing a needle in the position determined bysaid stops adjustment.

In testimony whereof I ailix my signature in presence of two witnesses.

ARTHUR CARP.

\Vitnesses GEO. E. GILL, JOHN C. l-Ircnon.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents.

Washington, D. G.

